Public bug reported:
[Impact]
Hotplugging RJ45 ethernet cable only works for one time because ACPI GPE
wake doesn't working properly anymore.
[Fix]
Always use PME poll to read PCI PME to know if there's wake event.
[Test]
With the patch applied, ethernet cable can always be detected.
[Where problems could occur]
PME poll mechanism periodically reads the PMCTRL register, so the power
consumption can be slightly higher. The increase will be very low,
probably won't be noticeable.
** Affects: linux (Ubuntu)
Importance: Undecided
Status: New
** Affects: linux-oem-6.1 (Ubuntu)
Importance: Undecided
Status: Invalid
** Affects: linux (Ubuntu Jammy)
Importance: Medium
Status: Confirmed
** Affects: linux-oem-6.1 (Ubuntu Jammy)
Importance: Medium
Status: Confirmed
** Affects: linux (Ubuntu Lunar)
Importance: Medium
Status: Confirmed
** Affects: linux-oem-6.1 (Ubuntu Lunar)
Importance: Undecided
Status: Won't Fix
** Also affects: linux (Ubuntu Lunar)
Importance: Undecided
Status: New
** Also affects: linux (Ubuntu Jammy)
Importance: Undecided
Status: New
** Changed in: linux (Ubuntu Jammy)
Status: New => Confirmed
** Changed in: linux (Ubuntu Lunar)
Status: New => Confirmed
** Changed in: linux (Ubuntu Jammy)
Importance: Undecided => Medium
** Changed in: linux (Ubuntu Lunar)
Importance: Undecided => Medium
** Also affects: linux-oem-6.1 (Ubuntu)
Importance: Undecided
Status: New
** Changed in: linux-oem-6.1 (Ubuntu Lunar)
Status: New => Won't Fix
** Changed in: linux-oem-6.1 (Ubuntu)
Status: New => Invalid
** Changed in: linux-oem-6.1 (Ubuntu Jammy)
Status: New => Confirmed
** Changed in: linux-oem-6.1 (Ubuntu Jammy)
Importance: Undecided => Medium
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https://bugs.launchpad.net/bugs/2028122
Title:
Fix unreliable ethernet cable detection on I219 NIC
Status in linux package in Ubuntu:
New
Status in linux-oem-6.1 package in Ubuntu:
Invalid
Status in linux source package in Jammy:
Confirmed
Status in linux-oem-6.1 source package in Jammy:
Confirmed
Status in linux source package in Lunar:
Confirmed
Status in linux-oem-6.1 source package in Lunar:
Won't Fix
Bug description:
[Impact]
Hotplugging RJ45 ethernet cable only works for one time because ACPI GPE
wake doesn't working properly anymore.
[Fix]
Always use PME poll to read PCI PME to know if there's wake event.
[Test]
With the patch applied, ethernet cable can always be detected.
[Where problems could occur]
PME poll mechanism periodically reads the PMCTRL register, so the power
consumption can be slightly higher. The increase will be very low,
probably won't be noticeable.
To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/2028122/+subscriptions
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